Struct SubscriptionOptions 

pub struct SubscriptionOptions {
    pub batch_size: Option<usize>,
    pub last_rows: Option<u32>,
    pub from: Option<SeqId>,
    pub auto_fetch_batches: Option<bool>,
}

Options for live query subscriptions.

Fields

batch_size: Option<usize>

Hint for server-side batch sizing during initial data load.

last_rows: Option<u32>

Number of last (newest) rows to fetch for initial data.

from: Option<SeqId>

Resume subscription from a specific sequence ID.

auto_fetch_batches: Option<bool>

Client-side control for automatically requesting subsequent initial data batches.

Implementations

impl SubscriptionOptions

pub fn new() -> SubscriptionOptions

Create new subscription options with defaults.

pub fn with_batch_size(self, size: usize) -> SubscriptionOptions

Set the batch size for initial data loading.

pub fn with_last_rows(self, count: u32) -> SubscriptionOptions

Set the number of last rows to fetch.

pub fn with_from(self, seq_id: SeqId) -> SubscriptionOptions

Resume from a specific sequence ID.

pub fn with_from_seq_id(self, seq_id: SeqId) -> SubscriptionOptions

Resume from a specific sequence ID via deprecated alias.

pub fn with_auto_fetch_batches(self, enabled: bool) -> SubscriptionOptions

Control whether the client should automatically request subsequent initial data batches.

pub fn has_resume_seq_id(&self) -> bool

Check if this contains a resume seq_id.

Trait Implementations

impl Clone for SubscriptionOptions

fn clone(&self) -> SubscriptionOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SubscriptionOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for SubscriptionOptions

fn default() -> SubscriptionOptions

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SubscriptionOptions

fn deserialize<__D>( __deserializer: __D, ) -> Result<SubscriptionOptions, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for SubscriptionOptions

fn eq(&self, other: &SubscriptionOptions) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for SubscriptionOptions

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SubscriptionOptions